Don Mattingly pulled a Gregg Popovich on Friday.

The day after clinching a division title the Dodgers manager trotted out a lineup consisting almost entirely of backups. It was a calculated decision prioritizing rest for the team's dinged-up superstars over the pursuit of home-field advantage. Since a 30-42 start these Dodgers have undeniably gained an appreciation for the grand scheme of things.

Auditioning for a part in that scheme is Edinson Volquez the most recognizable name among Friday's mostly anonymous visitors. The frustrating right-hander reappeared on the mound at Petco Park for his first start against the Padres since they released him last month.

Following the Dodgers' celebratory dip Thursday at Chase Field Volquez's latest postseason tryout did not go as swimmingly. His return to San Diego was highlighted by a historic home run from Jedd Gyorko the rookie second baseman spoiling his ex-teammate's return in the Padres' 2-0 win.

San Diego scored a positive start to its final homestand of the season. Los Angeles continues to face a nagging question concerning its playoff rotation.

Volquez allowed the two runs over 6 1/3 innings -- a marked improvement from his final start as a Padre when he exited in the first inning after giving up five earned runs -- but was typically less than efficient. He issued four walks and threw 111 pitches. More than a few of them confirmed a familiar scouting report.

"When he is executing all of his pitches and when he’s attacking hitters he’s really tough" Padres third baseman Chase Headley said before the game. "When he gets in trouble is when he gets himself into trouble. He starts getting behind in counts and walking guys.

"You have to come in with a plan and adjust accordingly. You see if he’s going to throw strikes and if he is you have to be a little more aggressive. And vice versa."

Gyorko who will turn 25 on Monday at times already looks like a seasoned veteran at the plate. Friday he chose the aggressive route against Volquez and drove in both of the Padres' runs. His first-inning RBI groundout gave the Padres a 1-0 lead.

In the fifth Dodgers catcher Tim Federowicz set up low and away for a 2-0 pitch. Volquez elevated a fastball. Gyorko clubbed it for a 417-foot shot over the center-field wall.

With that homer Gyorko became just the fifth rookie second baseman ever to hit 20 home runs. He also set a new Padres single-season record for home runs by a second baseman surpassing Bret Boone's 19 blasts in 2000.

"As the season was winding down it was a number that I thought I would get to" Gyorko said. "It feels good to get it and we've still got nine games to add to it."

Said Padres manager Bud Black: "He thinks he can get anything which is good. Twenty home runs as a rookie that's real."

Meanwhile fellow rookie Robbie Erlin put together his best start as a big-leaguer although the Dodgers' hodgepodge lineup presented a challenge reminiscent of the Albuquerque Isotopes. Over a career-high 7 2/3 innings Erlin surrendered four hits and a walk. He set another career high with seven strikeouts.